function [ mat ] = getMat( this, zRowId, zColId )
% DataMatrix::getMat(dataMatrix)
% Get the member variable $.mat$
%
% Input
% 1. dataMatrix
%
% Output
% 1. mat : main matrix in double form
%
% Syntax
% 1. [ mat ] = dataMatrix.getMat();

if nargin == 1
    mat = this.mat;
    return
end

if nargin == 2
    zColId = ':';
end

mat = this.mat(zRowId, zColId);

end
